Built Solid 10 Pack 689ZZ Mini Precision Stainless Steel Ball Bearings 9X17X4mm Double Shielded High Speed With Silky Smooth Spin Low Friction Pre Lubricated For Bike Parts And DIY Projects

Precision stainless steel bearings for bicycles and tools
✔️ Pack of ten sealed rings sized 9 x 17 x 4 millimeters

You need low friction rotation for your custom bike mods or small workshop projects. These mini sealed units slide into tight spaces without adding bulk. Their metal shields keep dust out while letting them spin freely.

✅ Made from hardened bearing steel that resists daily wear
✅ Preloaded with high speed grease for smooth operation
✅ Double sided seals protect internal tracks from grit
✅ Lightweight build delivers quiet rolling under pressure
✅ Pack includes ten exact duplicate replacements ready to install

💡 What makes sealed bearings handy for outdoor equipment?
Sealed units lock lubricant inside so moving parts stay smooth.
- Shield designs block dirt from reaching the internal tracks.
- Ready fitted components save time on messy rebuilds.
- Standard sizes swap easily into frames and hubs.

✝️